Unit 1 Midterm Review

Front

What is the conversion factor between pounds and kilograms?

Back

1 kilogram = 2.2 pounds

Front

How many ounces are in a pound?

Back

16 ounces in a pound

Front

Convert 22 pounds to kilograms.

Back

10 kg

Front

Which measurement has the largest error when rounding: 19.0 g/mol, 35.5 g/mol, 89.9 g/mol, or 123.8 g/mol?

Back

35.5 g/mol has the largest error when rounding.

Front

What happens to a molecule when it absorbs a photon of microwaves?

Back

It begins to rotate.

Front

What is the result of (3x10^-4)(4x10^-5) / (2x10^-5)?

Back

6 x 10^-4

Front

What is the valence electronic structure of a noble gas?

Back

ns^2 np^6

Front

What is the significance of the valence electronic structure in chemistry?

Back

It determines the chemical properties and reactivity of an element.

Front

Define 'mks units'.

Back

MKS units refer to the meter-kilogram-second system of units used for measuring physical quantities.

Front

What is the principle of dimensional analysis?

Back

Dimensional analysis is a method to convert one set of units to another using conversion factors.